Specifying selection criteria for a limit stage: Discrete attributes
You can select discrete values from a list in a limit stage.
More than one value may be selected.
Materials matching any of the discrete values selected (and that pass the rest of the stage) will show up in the results. For example, for the Transparency attribute, select one of: Opaque, Translucent, Transparent, Optical quality.
Set the selection criteria and then click Apply. This performs the selection and updates the Selection Results window.